[Expired for linux (Ubuntu) because there has been no activity for 60
days.]
** Changed in: linux (Ubuntu)
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1207409
Title:
erro connecting more than 4 usb modems "parent hub has no TT"
Status in “linux” package in Ubuntu:
Expired
Bug description:
Dear Srs,
I need to connect multiple modems on the same machine but when connect more
than 4 modems appears the following error "parent hub has no TT". I researched
about it and saw some comments saying that this error was corrected in kernel
2.6.36.
I always use the newest version of the kernel that is now
"3.2.0-29-generic-pae # 46-Ubuntu SMP Fri Jul 27 17:25:43 UTC 2012 i686 i686
i386 GNU / Linux" but the error persists. My Ubuntu is 12.04 server, i need
help.
# cat /var/log/kern.log |grep USB
Jul 29 17:58:31 T1-server kernel: [609170.558212] ehci_hcd 0000:02:02.0: USB
bus 1 deregistered
Jul 29 18:03:06 T1-server kernel: [ 1.384403] ehci_hcd: USB 2.0
'Enhanced' Host Controller (EHCI) Driver
Jul 29 18:03:06 T1-server kernel: [ 1.385227] ehci_hcd 0000:02:02.0: new
USB bus registered, assigned bus number 1
Jul 29 18:03:06 T1-server kernel: [ 1.430995] ehci_hcd 0000:02:02.0: USB
2.0 started, EHCI 1.00
Jul 29 18:03:06 T1-server kernel: [ 1.476203] hub 1-0:1.0: USB hub found
Jul 29 18:03:06 T1-server kernel: [ 1.476676] ohci_hcd: USB 1.1 'Open'
Host Controller (OHCI) Driver
Jul 29 18:03:06 T1-server kernel: [ 1.476913] uhci_hcd: USB Universal
Host Controller Interface driver
Jul 29 18:03:06 T1-server kernel: [ 1.477690] uhci_hcd 0000:02:00.0: new
USB bus registered, assigned bus number 2
Jul 29 18:03:06 T1-server kernel: [ 1.478668] hub 2-0:1.0: USB hub found
Jul 29 18:03:06 T1-server kernel: [ 2.292074] usb 1-6: new high-speed USB
device number 2 using ehci_hcd
Jul 29 18:03:06 T1-server kernel: [ 2.622252] hub 1-6:1.0: USB hub found
Jul 29 18:04:00 T1-server kernel: [ 57.588526] usb 1-1: new high-speed USB
device number 3 using ehci_hcd
Jul 29 18:04:01 T1-server kernel: [ 58.312284] Initializing USB Mass
Storage driver...
Jul 29 18:04:01 T1-server kernel: [ 58.312456] USB Mass Storage support
registered.
Jul 29 18:04:02 T1-server kernel: [ 59.324587] scsi 3:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 29 18:04:05 T1-server kernel: [ 62.613166] usb 1-1: USB disconnect,
device number 3
Jul 29 18:04:06 T1-server kernel: [ 63.149032] usb 1-2: new high-speed USB
device number 4 using ehci_hcd
Jul 29 18:04:06 T1-server kernel: [ 63.559088] USB Serial support
registered for generic
Jul 29 18:04:07 T1-server kernel: [ 64.037070] usbserial: USB Serial
Driver core
Jul 29 18:04:07 T1-server kernel: [ 64.038958] USB Serial support
registered for GSM modem (1-port)
Jul 29 18:04:07 T1-server kernel: [ 64.041995] usb 1-2: GSM modem (1-port)
converter now attached to ttyUSB0
Jul 29 18:04:07 T1-server kernel: [ 64.042155] usb 1-2: GSM modem (1-port)
converter now attached to ttyUSB1
Jul 29 18:04:07 T1-server kernel: [ 64.042324] usb 1-2: GSM modem (1-port)
converter now attached to ttyUSB2
Jul 29 18:04:07 T1-server kernel: [ 64.042783] option: v0.7.2:USB Driver
for GSM modems
Jul 29 18:04:07 T1-server kernel: [ 64.549054] scsi 4:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:11 T1-server kernel: [143767.734731] usb 1-1: new high-speed
USB device number 5 using ehci_hcd
Jul 31 09:59:12 T1-server kernel: [143769.114496] scsi 5:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:15 T1-server kernel: [143772.343917] usb 1-1: USB disconnect,
device number 5
Jul 31 09:59:16 T1-server kernel: [143772.922616] usb 1-3: new high-speed
USB device number 6 using ehci_hcd
Jul 31 09:59:16 T1-server kernel: [143773.288882] usb 1-3: GSM modem
(1-port) converter now attached to ttyUSB3
Jul 31 09:59:16 T1-server kernel: [143773.289064] usb 1-3: GSM modem
(1-port) converter now attached to ttyUSB4
Jul 31 09:59:16 T1-server kernel: [143773.289287] usb 1-3: GSM modem
(1-port) converter now attached to ttyUSB5
Jul 31 09:59:17 T1-server kernel: [143774.314210] scsi 6:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:34 T1-server kernel: [143791.366137] usb 1-1: new high-speed
USB device number 7 using ehci_hcd
Jul 31 09:59:36 T1-server kernel: [143792.754396] scsi 7:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:39 T1-server kernel: [143796.158952] usb 1-1: USB disconnect,
device number 7
Jul 31 09:59:40 T1-server kernel: [143796.714104] usb 1-4: new high-speed
USB device number 8 using ehci_hcd
Jul 31 09:59:40 T1-server kernel: [143797.079842] usb 1-4: GSM modem
(1-port) converter now attached to ttyUSB6
Jul 31 09:59:40 T1-server kernel: [143797.079995] usb 1-4: GSM modem
(1-port) converter now attached to ttyUSB7
Jul 31 09:59:40 T1-server kernel: [143797.080258] usb 1-4: GSM modem
(1-port) converter now attached to ttyUSB8
Jul 31 09:59:41 T1-server kernel: [143798.122270] scsi 8:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:55 T1-server kernel: [143811.862772] usb 1-1: new high-speed
USB device number 9 using ehci_hcd
Jul 31 09:59:56 T1-server kernel: [143813.234364] scsi 9:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 09:59:59 T1-server kernel: [143816.254322] usb 1-1: USB disconnect,
device number 9
Jul 31 10:00:00 T1-server kernel: [143816.794671] usb 1-5: new high-speed
USB device number 10 using ehci_hcd
Jul 31 10:00:00 T1-server kernel: [143817.164897] usb 1-5: GSM modem
(1-port) converter now attached to ttyUSB9
Jul 31 10:00:00 T1-server kernel: [143817.165073] usb 1-5: GSM modem
(1-port) converter now attached to ttyUSB10
Jul 31 10:00:00 T1-server kernel: [143817.165207] usb 1-5: GSM modem
(1-port) converter now attached to ttyUSB11
Jul 31 10:00:01 T1-server kernel: [143818.182250] scsi 10:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 10:00:16 T1-server kernel: [143832.770139] usb 1-1: new high-speed
USB device number 11 using ehci_hcd
Jul 31 10:00:17 T1-server kernel: [143834.134241] scsi 11:0:0:0: CD-ROM
ZTE USB SCSI CD-ROM 2.31 PQ: 0 ANSI: 2
Jul 31 10:00:21 T1-server kernel: [143838.170582] usb 1-6.1: new full-speed
USB device number 12 using ehci_hcd
Jul 31 10:00:21 T1-server kernel: [143838.450636] usb 1-6.1: new full-speed
USB device number 13 using ehci_hcd
Jul 31 10:00:22 T1-server kernel: [143838.746149] usb 1-6.1: new full-speed
USB device number 14 using ehci_hcd
Jul 31 10:00:22 T1-server kernel: [143839.038725] usb 1-6.1: new full-speed
USB device number 15 using ehci_hcd
Jul 31 10:00:22 T1-server kernel: [143839.042798] hub 1-6:1.0: unable to
enumerate USB device on port 1
Jul 31 10:00:22 T1-server kernel: [143839.046211] usb 1-1: USB disconnect,
device number 11
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